Battery TenderVoltage Indicator for Easy-to-Use Accurate 12V Battery Testing - Easily Track 12V Battery Voltage Using LCD Display with LED Charge Indicator - 081-0157

Worked as discribed. Easy to use makes it easy to check the battery with out taking seat off

Works great and just plug into the battery tender and it works. Lets you know the battery voltage and the charging voltage when you increase the rpms.

Very accurate, I double checked the reading with 2 other volt meters I have. I'm happy with this little gauge, it's small enough to leave in my windshield bag to double check voltage of my motorcycle battery on a trip.

Outstanding just what I was looking for!

It does work as advertised.It is a bit small, but readable and the price is reasonable. I have it connected continuously to my portable generator’s battery along with a Battery Tender. I use it to be sure that Battery Tender is working, charging, and properly connected. I have checked it against other voltmeters and it is right on at about 12.5 volts and about 1/10 of a volt high at 13.1 volts, it is within it advertised accuracy. The LEDs are a cute feature, but unnecessary for me, since I am interested in a more exact voltage reading. The LEDs may be useful for someone that does not understand the voltage readings.I would give it 5 stars, but after two months I have developed an intermittent problem. Sometimes, when I push the button it not does work. After a few pushes on the button, the display does come on. Right now, I am not sure if a failure is imminent. It is in a cold garage, so the cause could be the cold. I intend to buy a spare in case this one fails. I will give it one more chance, since I have found Deltran products to be very good.There are not many voltmeters of this type on the market. I do have a Volt Minder, a similar product, which is being used for another application. The Volt Minder is superior to this unit. However, I did not use it since the Volt Minder it is a lot more expense, and it is designed to connect through a cigarette lighter. It would take a bit more finesse to connect it to my generator.

Very handy

Plugged it into a weatherproof exterior outlet that is wired to the batteries. Bought this product so I could check battery voltage on my Jeep without having the engine running. It also gives me the percentage of the battery charge. Then I can also plug it in my battery tender Junior to keep my batteries maintained on my jeep gladiator

To large to tuck into the side cover of my Gold Wing